The Quake 2 tools as originally released under the GPL license.
-rw-r--r-- 15148 COPYING.txt
-rw-r--r-- 1379 README.txt
drwxr-xr-x - Unpack
drwxr-xr-x - bsp
drwxr-xr-x - common
drwxr-xr-x - qdata
drwxr-xr-x - qe4
drwxr-xr-x - texpaint